Padlock.



E. J. SHlPMA N.

, PA DLOCK. APPLICAUON FILED MAR. 31, 1914. 1,165,545. Patented Dec. 28,1915.

as W

,4 HORNE) UNITED sTA Es PATENT UFFICE,

emu ir, nirfmn, or -1\TEW H-LWEN, CONNECTICUT, ASSIGNGR To SARGENT &COMPANY, or NEW HAVEN, CONNECTICUT, A'CORPORATION or CCNNECTICUT.

FPADLOCK.

Specification of Letters Patent.

Patented Dec. 28, 1am.

Application-filedMarch 31, 1914. Serial No. 828,515.

Toaall whom-it may concern: 7 U 'Beit known that 1, EVAN J. SHIPMAN, a

'jQltlZGIljfOf the UnitediStates, residing in New Haven, county 01 NewHaven, and

Stateof Connecticut, have invented "certain newand useful-Improvements1n Padlocks, of which the following is a full, clear, and

exact description.

This invention relates to padlocks, and

more particularly to padloc'ks provided with registering mechanismwhereby the number ofti'mes that the padlock, is actuated [during aseertain' :period is visuallyindicated on the epadlock itself.

.wP-ad-loc 'k's of this kind are intended to "facilitate the tracing ofthefts.

My "improvements relate ,more, especially to refgisteri-ng padlocks -ofthe pm tumbler type.

- lf he{- pri mai-y object of the invention is-to provideimprovedandsimplified means "for -of parts to be 1 hereinafterfdescr'ibe'd and 111 the -accompanying drawm'g, F gure 1 isaifrontelevation ofa padlock embodying ,my improvements, with the shackleclosed. Fig.2 is a similar view, with the shackle open. f-Fig. 3 is anelevation of the lock mechanism removed from the case of the ,padlock,looking from "the front "Figs. 4

aud 5 are'end views ofFig.3. 'Fi-gfG isa ':'view similar to Fig.*3,"with"th'e registering -dial"om itted. Figf tl is a fragmentary view6, showing the dialfa'ctuating'lpawl in a different position. 'Fig'. 7is a section on line 7 7 ofFi'gf3, and 'Fi'gQS is a rearview o fthedialdetached. a t

Referring to the drawingyl have shown my improvements appliedtoapadlockh'avingfacase 10, and a sliding "shackleil, "The j*padlockselected for illustration is er the,

"Igener'al'type set forth in Patent No." 729,? 92,

' granted to Sargent; &"Company, on June2, 11903, as assignee'of'Aflbert'A; Page, 'andthe "pin tumbler lock o'r-secu1=-in andreleasingthe sha'cklell' com rises a case 12 carried by 'the' 'faceplate, orbottom plate 13," and a key, plug, or barrel 14c rotatable in'aniopening in the face plate, and adapted to cooperate with the usualkey 15.

The mechanism for locking and releasing the shackle is not illustratedin detail, as it is fully shown in the patent above mentioned, and forthe same reason it has been considered unnecessary to illustrate themeans iior securing the pin tumbler lock mechan- 1sm inthe case 10.

In accordance with my invention, the key plug 14 is adapted to actuate apawl, or the llke, each time the shackle isreleased, which pawl inturnactuates a registering dial having members which are successivelyvisible through'an openmg 1n the case wall, as the dial is turned on itsaxis. In the form shown, the case 12 of the pin tumbler lock is Vcutaway at 16 to expose the key plug 145 and permit attachment to thekey plug of a lug 17, -which maybe secured to the cylindrical walloftheplug by means of a small screw 18. A pin 19eXtendingperpendicularly towith a notch 21 adapted to engage the lug 17 on the key plug, in themanner shown in Figs. 6 and 6 the arrangement being such that when thelug 17 is moved to the right relativelyto Fig. 6,the end 20 of the pawl20'1s moved downward, whereas when the lug '17 moved in the oppositedirection, the end 'QO ISTQtUIHGCl to its elevated positI'OIL'SllOWIl inFig. 6.

The pin 19 not only serves as a pivot for thepawl 20, but also as anarbor for a registering dial 22. The rear face of the dial 22 'isprovided with notches or ratchet teeth 23, adapted 'to be engaged by theend 20 of the pawl 20,: such end 20 being suitably "shaped for thatpurpose, as shown in Fig. 4.

"Hence, as the pawl is moved from the position shown in Fig. 6 to thatshown in Fig. 6 the dial 22 is turned clockwise.

On the return movement of the pawl 20*, a check "pawl 24secured to thecase 12, by a screw 25, engagesone of the notches 23, and preventscorrespondmg movement of the dial 'so that as the key plug is actuatedto open thepadlocka number of times, the dial 22 is rotatedintermittently in a clockwise direction with reference to Fig. 3. Theouter or front face of the dial 22 carries suitable members adapted tobe brought successively mto register with an opening 26 in the frontwall of the case.- Supposing the parts to be r in the position shown inFig. 1, with the number 6 appearing through the opening 26 in the case,the movement of the key plug 14;, incident to the release of theshackle,

moves the dial 22 (by means of the pawl to an extent suilicient topresent" the number tion of a shackle, pin tumbler lock mecha- 'nism forsecuring and releasing the same,

including a key plug, a registering dial, said dial being spaced fromand substantially coextensive w th the plug, and mechanism cooperatingwith the key plug and dial forjactuating the said dial with the keyplug,

substantially as described.

2. In a registering pad-lock, the combination of a shackle, pin tumblerlock mecha-.

nism for securing and releasing the same, including a key plug, a caseinclosing said lock mechanism, a pawl pivotally mounted on said case, amember projecting from the key plug to the exterior ofsaid case adaptedto rock the pawl, and a registering dial adjacent the pawl adapted to beactuated through the medium of the pawl upon a movement of the key plug,substantially as described. V

3. In a registering pad-lock, the combination of ashackle, pin tumblerlock mechanism for securing and releasing the same. including a keyplug, a casing for entirely inclosing said mechanism, a dial mounted onthe exterior of the casing, and a second case having a sight openingthrough which the dial is visible adapted to inclose the same, and meansfor transmitting movement from the key plug to the dial, substantiallyas described. V 4. In a registering pad-lock, the combination of ashackle, pin tumbler lock mechanism for securing and releasing the same,a casing inolosing said mechanism, a registering dial mounted on theexterior of the said casing, means independent of thelock tumblermechanism for actuating said dial upon the releasing of the lock tumblermechanism, and a second casing having a sight opening therethroughadapted to inclose the registering dial, substantially as described. 75. In a registering pad-lock the combination of a shackle, pin tumblerlock mechanism folsecuring and releasing the same, 'a casing for themechanism, a bearing on the'exterior of the case, a rocking'pawlpiwotally mounted on the'bearmg, 'a' serrated ndicating d1al mounted on thebearing, and

means carried by the key plug for rocking 3 pawl, to actuate the dial,substanti ll as described. v i

6. In a'registering padlock,the combina tion of a shackle pin tumblerlocking mechanism for securing and releasing'the'same, including a keyplug, a casing inclosing the mechanism, and an' outwardly extendingbearing arranged on the exterior of the easing, an elongated rockingpawl pivotally mounted on said bearing pin, an indicator dial having aserrated portion journaled on said bearing pin adjacent the pawl andmeans carried by the key plug for rocking said pawl to actuate the dialsubstantially as described.

7.- Ina registering padlock, the combination of a shackle pin tumblerlocking mechanism for securing and releasing the same,

including akey plug, a casinginclosing the mechanism and an outwardlyextend ng bearing pin arranged on thefexterior 0t the case, an elongatedrocking pawl pivotally mounted on said bearing pin, an in- I 'dicatordial having a serrated portion jour naled on said bearing pin adjacentthe pawl and means carried by the key--plug for locking said pawl toactuate the dial, and a second case having a sight opening therethroughadapted to inclose the dial.

8. In a registering padlock, the combination of a shackle, pin tumblerlockingmechmechanism and plug, a dial substantially coextensive with thecasing and arranged thereon, and means for transmitting movement fromthe key plug to the dial, substantially as described. y

10. In a registering padlock, the combination with a shackle, pintumbler locking mechanism for securing and releasing the same, includinga key plug, ai -rotating dial spaced from the locking mechanism, avcasmg havmg a, sight opening through which said dial is visible, andmeans fortransmit ting movement from the locking mechanism to the dial,substantially as described. 1

11. In a registering padlock, the combinaanism for securing andreleasing the same, including a key plug, a caslng incloslngsaldmechanism, a bearing pin on sand casing, a-

tion of a shackle, locking mechanism for securing and releasing thesame, a casing inclosing said mechanism, a rocking pawl on said casing,said pawl having a cut-away portion therein, a dial arranged adjacentthe pawl and cooperating therewith, and a part engaging the cut-awayportion adapted to rock the pawl when the shackle is released,substantially as described.

12. In a registering padlock, the'combination with a shackle, a lockingmechanism for securing and releasing the same, a casing for saidmechanism, a rocking pawl pivotally mounted on the casing, an indicatordial journaled on the casing and cooperating with the pawl, asecond-casing having a sight opening therein inclosing the dial, andmeans for rocking said pawl to actuate the dial, substantially asdescribed.

13. In a registering padlock the combination with a shackle, lockingmechanism for securing and releasing the same, a casing for saidmechanism, a registering dial j ournaled on the casing and spaced aslight distance therefrom, means projecting through the casing foractuating said dial upon the releasing of the locking mechanism, and asecond casing having a sight opening therethrough adapted to inclose theregistering dial, substantially as described.

14. In a registering padlock, the combination with a shackle, lockingmechanism for securing and releasing the same, a casing for saidmechanism, a rocking pawl on said casing, a dial adjacent the pawl andcooperating therewith, and a part having a loose connection with thepawl adapted to rock the same to correspondingly actuate the dial whenthe pawl is released, substantially as described.

In witness whereof, I have hereunto set my hand on the 26 day of March,1914.

EVAN J. SHIPMAN.

Witnesses:

R. C. TERRELL, W. J. BELL.

Copies of this patent may be obtained for five cents each, by addressingthe "Commissioner of Patents, Washington, D. G.

